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26 Proserpina
Classification: Main-belt Asteroid          SPK-ID: 2000026
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09025607827631883 3.9917e-08  
a 2.655279404713843 6.4196e-09 AU
q 2.415624298916493 1.0689e-07 AU
i 3.563452179001906 4.1611e-06 deg
node 45.79373631590866 9.398e-05 deg
peri 194.3303855407759 9.9952e-05 deg
M 54.70227487425747 3.4164e-05 deg
tp 2456560.358812444314
(2013-Sep-24.85881244)
0.00014982 JED
period 1580.388159702112
4.33
5.7313e-06
1.569e-08
d
yr
n .2277921394120395 8.2609e-10 deg/d
Q 2.894934510511193 6.999e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1348  
   data-arc span      55674 days (152.43 yr)  
   first obs. used      1861-01-31  
   last obs. used      2013-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64372  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 13:11:51  

Additional Information
 Earth MOID = 1.40346 AU 
 T_jup = 3.380 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.4 mag n/a MPO265954  
diameter diameter 94.80 km 1.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
rotation period rot_per 13.110 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Scaltriti, F.; Zappala, V. (1979) Icarus 39, 124-130.]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bul. 34, 59-64.]
[Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bul. 35, 44-46.]
[Pilcher, F. (2008) Minor Planet Bul. 35, 135-138.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2013) Minor Planet Bul. 40, 189.]
geometric albedo albedo 0.1966   0.007 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
B-V BV .891 mag .018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=4.17, mean=15.15, max.=21.44) deg.
U-B UB .525 mag .056 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=4.17, mean=15.15, max.=21.44) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

26 Proserpina          Discovered 1853-May-05 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 KK = 1954 WD1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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